Having spent heavily in the transfer window again, Jose Mourinho is under pressure to deliver.

But if he is to take Manchester United to the top of the table, local rivals Man City will be the team most likely to stand in their way according to Giggs.

‘I think Manchester City are the team to beat,’ the Old Trafford legend told Sky Sports. ‘I looked at them towards the end of last season and the forward players they’ve got is scary, with Sergio Aguero, Gabriel Jesus, Leroy Sane, Kevin De Bruyne, David Silva and Raheem Sterling.

Sergio Aguero and Gabriel Jesus in pre-season action (Getty)

‘What they needed to get right was their defence and it will be interesting to see how Ederson [signed from Benfica for £34million] settles in, because you don’t win the Premier League with an average goalkeeper.

‘They’ve obviously invested heavily on full-backs but the question is still whether Vincent Kompany can stay fit because his influence and experience are key for them.’

Man City manager Pep Guardiola has signed Benjamin Mendy, Kyle Walker and Danilo to improve his backline. The Spanish coach will hope it sees an improvement on last season’s third place finish.

Pep Guardiola’s side are the favourites with the bookmakers (Getty)

Meanwhile, reigning champions Chelsea could struggle to deal with the additional strain of Champions League football, reckons Giggs.

‘You can’t ignore Chelsea because of their quality, but have they got the squad to balance defending the Premier League and European football? I’m not sure.’

Antonio Conte has a tough task to emulate last season’s impressive showing (Getty)

On Tottenham, GIggs believes the lack of any new arrivals could signal a difficult season after last season’s impressive second-place finish.

‘Tottenham have a really exciting squad and a great manager in Mauricio Pochettino, but everybody is asking whether they can continue to match sides without signings.

‘I think they need a couple, not to improve their starting line-up but to make the squad better, while they’ve also got the Wembley factor, so they really need to get off to a good start.’